7 Filtration elements as part of machines in the nature of filters for use in the purification, treatment and filtration of liquids for food-processing industry machines, beverage industry machines, bio-pharmaceutical industry machines, bio-technology industry machines, pharmaceutical industry machines, environmental industry machines, paper industry machines, textile industry machines, printing industry machines, metallurgy industry machines, marine industry machines and the chemical and petrochemical industries machines, and their integral components namely, ceramic membranes and their housings; filtration elements connected to both the input and output of a circulation pump in the nature of filters for use in the purification, treatment and filtration of liquids for food-processing industry machines, beverage industry machines, bio-pharmaceutical industry machines, bio-technology industry machines, pharmaceutical industry machines, environmental industry machines, paper industry machines, textile industry machines, printing industry machines, metallurgy industry machines, marine industry machines and the chemical and petrochemical industries machines, and their integral components namely, ceramic membranes and their housings; machine parts, namely, filtration elements connected to a circulation loop in the nature of filters for use in the purification, treatment and filtration of liquids for food-processing industry machines, beverage industry machines, bio-pharmaceutical industry machines, bio-technology industry machines, pharmaceutical industry machines, environmental industry machines, paper industry machines, textile industry machines, printing industry machines, metallurgy industry machines, marine industry machines and the chemical and petrochemical industries machines, and their integral components namely, ceramic membranes and their housings; filtration elements as part of machines in the nature of inorganic filters for use in the purification, treatment and filtration of liquids for food-processing industry machines, beverage industry machines, bio-pharmaceutical industry machines, bio-technology industry machines, pharmaceutical industry machines, environmental industry machines, paper industry machines, textile industry machines, printing industry machines, metallurgy industry machines, marine industry machines and the chemical and petrochemical industries machines, and their integral components namely, ceramic membranes and their housings; filtration elements as part of machines in the nature of organic filters for use in the purification, treatment and filtration of liquids for food-processing industry machines, beverage industry machines, bio-pharmaceutical industry machines, bio-technology industry machines, pharmaceutical industry machines, environmental industry machines, paper industry machines, textile industry machines, printing industry machines, metallurgy industry machines, marine industry machines and the chemical and petrochemical industries machines, and their integral components namely, ceramic membranes and their housings